محبوبترین نویسندگان :
نویسندگان مقالات پربازدید :
دینامیک خاک و مهندسی زلزله 2011
جزئیات رویداد
همایش ، رویداد ، ژورنال
اینستاگرام تی پی بین
حوزه های تحت پوشش رویداد

  • numerical analysis of permafrost effects on the seismic site response

    نویسندگان :
    کلمات کلیدی :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 921
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     some of the damage to the infrastructure observed in past earthquakes occurred in alaska could be related to the existence of permafrost. however, only limited research has been carried out so far to investigate the effects of permafrost on the seismic site response. permafrost with relatively high shear wave velocity (1000–1500 m/s) extensively exists in the interior of alaska and causes anomaly in the shear wave velocity profile that may alter the site response. in current design practices, permafrost has been treated as bedrock and its potential effects on site response are ignored. a systematic investigation was conducted to understand the effects of permafrost on the ground motion characteristics using one-dimensional equivalent linear analysis for the mce, aashto and ibc design earthquake level hazards. the average surface displacement, velocity and acceleration response spectra for a typical permafrost site were obtained and the worst case scenario was identified. the results show that the presence of permafrost can significantly alter the ground motion characteristics and it may not be conservative to ignore the effects of permafrost in the seismic design of civil structures.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها